Table 4-2. Troubleshooting

S e c t i o n V I . T R O U B L E S H O O T I NG

Table 4-2. Troubleshooting (Cont) - TM-5-6115-585-12_115

TM-5-6115-585-12 Generator Set Diesel Engine Driven Tactical Skid Mtd 5 KW 1 Phase 2 Wire 1 Phase-3 Wire 3 Phase-4 Wire 120 120/240 and 120/208 Volts Manual
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T M 5 - 6 1 1 5 - 5 8 5 - 1 2 NAVFAC P-8-262-12 T O - 3 5 C 2 - 3 - 4 5 5 -1 TM-05684C-12 Table 4-2. Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. ENGINE FAILS TO CRANK WHEN MASTER SWITCH IS HELD IN THE START POSITION. S t e p 1 . U s e s l a v e r e c e p t a c l e w h e n e x t r a c r a n k i n g p o w e r i s r e q u i r e d . S t e p 2 . T e s t b a t t e r i e s ( p a r a g r a p h 4 - 2 5 ). R e p l a c e d e f e c t i v e b a t t e r i e s . C h e c k b a t t e r y a l t e r n a t o r f u s e a n d r e p l a c e i f n e c e s s a r y . S t e p 3. Inspect battery and starter cables for corrosion and loose connections. Clean or tighten cables. S t e p 4. Test “START’’ position of master switch (paragraph 4-38). R e p l a c e d e f e c t i v e m a s t e r s w i t c h. s t e p 5 . Inspect and test for open starter solenoid switch or for short to ground (paragraph 4-26). Replace defective solenoid. S t e p 6. Inspect and test starter lockout switch (paragraph 4-28). Adjust switch points if they are not closing or replace defective switch. 2. STARTER TURNS BUT WILL NOT ENGAGE ENGINE. S t e p 1 . I n s p e c t s t a r t e r d r i v e a s s e m b l y ( p a r a g r a p h 4 - 2 6 ) . Clean drive assembly if it is sticking. Step 2. Inspect starter drive gear assembly for worn or broken teeth (paragraph 4-26). R e p l a c e s t a r t e r. 3. ENGINE CRANKS NORMALLY BUT FAILS TO START. Step 1. Test stop solenoid for correct operation (paragraph 4-23). Replace bad solenoid. Step 2. Inspect fuel pumps for clogged strainers (paragraph 4-21). R e p l a c e s t r a i n e r e l e m e n t. Step 3. Inspect for clogged fuel strainer element or fuel filter elements (paragraph 4-20). C l e a n s t r a i n e r e l e m e n t ; r e p l a c e f u e l f i l t e r e l e m e n t s. Step 4. Check for clogged fuel lines to injector pump. Clean or replace clogged fuel lines. Step 5. Test for worn or damaged fuel pumps (paragraph 4-21). Replace bad pumps. Step 6. Inspect and test intake manifold heaters (paragraph 4-43). R e p l a c e b a d h e a t e r s . C h a n g e 5 4 - 7

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